Ground stake



FIG. 1 is a perspective view of a ground stake showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a second side elevational view as seen 90° from that of FIG. 3; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a ground stake, as shown and described. 